Vanessa Hudgens appears to be covering up something Thursday as she left the gym. Maybe an it's-that-time-of-the-month facial blemish? Or a cold sore, maybe?

Nah ... as it turns out, Vanessa was just biting nervously on her shirt sleeves as a security guard from the gym escorted her to her car.

Vanessa has plenty to be nervously excited about, she was just announced as an honoree at this year's Variety Power of Youth event at Paramount Studios in September, according to JustJared. The day will celebrate outstanding young entertainers who have made significant contributions to their chose philanthropic and charitable causes, according to the report.

The actress supports the Make-A-Wish Foundation, Habitat For Humanity, Stand Up to Cancer and Keep A Child Alive.